Server configuration

This topic describes the hardware requirements for a server, including the operating system, BIOS settings, disk mounting, network card settings, and software requirements.

Prepare the operating system

OAT/OCP operating systems

The following operating systems are supported for deploying OAT/OCP.

OceanBase Database operating systems

The following Linux operating systems are supported for installing OceanBase Database.

BIOS settings for OceanBase Server

Special settings

• In an Intel x86 environment:

  • We recommend that you modify the configuration file /etc/sysctl.conf and set the vm.swappiness parameter to 0. The sample code is as follows:

    [root@xxx /]
    $vi /etc/sysctl.conf
    vm.swappiness = 0
    

    Apply the settings in the sysctl.conf file:

    [root@xxx /]
    $sysctl -p    
    

• In an AMD or ARM environment, we recommend that you enable NUMA.

• In an ARM and Hilaogang environment, we recommend that you modify the configuration file /etc/sysctl.conf and set the kernel.numa_balancing, vm.zone_reclaim_mode, and vm.swappiness parameters to 0. The sample code is as follows:

  [root@xxx /]
  $vi /etc/sysctl.conf
  kernel.numa_balancing = 0
  vm.zone_reclaim_mode = 0
  vm.swappiness = 0
  

  Apply the settings in the sysctl.conf file:

  [root@xxx /]
  $sysctl -p
  

BIOS options to disable

• Cstate

• Pstate

• EIST

• Power saving

• SMMU (ARM)

BIOS options to configure

• Automatic Power on After Power Loss: Always on

• Intel Virtualization Technology: Enabled

• Hyper-threading: Enabled

• Hardware prefetcher: Enabled

• VT-d: Enabled

• SR-IOV: Enabled

• Turbo Mode: Enabled

• Energy performance: Maximum performance

  Note

  Different servers require different BIOS settings. For more information, see the manual of your server.

Disk mounting

• The following table describes the disk mounting requirements for OCP servers.

  Mount point	Size	Purpose	Disk format
  /home	100 GB~300 GB	Component runtime log disk	We recommend using ext4 or xfs.
  /data/log1	3~4 times the size of memory	OCP metadata log disk	We recommend using ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	OCP metadata data disk	We recommend using ext4 or xfs.
  /docker	200 GB~500 GB	Root directory of Docker	We recommend using ext4 or xfs.

• The following table describes the disk mounting requirements for OBServer nodes.

  Mount point	Size	Purpose	File system format
  /home	100 GB~300 GB	observer process runtime log disk	We recommend using ext4 or xfs.
  /data/log1	3~4 times the size of memory	observer process log disk	We recommend using ext4 or xfs.
  /data/1	Varies depending on the size of data to be stored	observer process data disk	We recommend using ext4 or xfs.

  Note

  We recommend that you allocate at least 50 GB for the root directory. If you use LVM, we recommend that you specify the --stripe-count parameter when you create it. Here is an example:

  lvcreate -n data -L 3000G obvg --stripes=3 --stripesize=128

Network card settings

We recommend that you configure two 10-Gigabit Ethernet network cards:

• Name the bond interface bond0. You can choose mode1 or mode4 for the bonding mode. We recommend that you choose mode4. If you select mode4, configure the 802.3ad protocol on the switch.
• We recommend that you name the network cards eth0 and eth1.